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Table 3.

The influence of the partial leaf removal around the cluster on the development of Uncinula necator with the different varieties in the region of Plovdiv (average data) (1996–1997).

Variety Disease severity on berries - % of infected berries, growth stages
“berries pea-sized”, bunches hang “beginning of berry touch”
Without leaf removal With leaf removal Without leaf removal With leaf removal
Brestovitsa 2.32 0.32 77.8–95.3 67.3–75.3
Bolgar 2.36 0.21 17.2–19.1 11.53–13.60
Dimyat 1.80 0.0 22.38–29.99 8.98–8.98
Cabernet Sauvignon 2.43 0.0 1.80–2.29 0.32–1.05
Mavrud 1.10 0.0 2.32-2.32 0.0–1.02
Kardinal 3.42 1.32 2.76–2.76 0.37–0.64
Super early Bolgar 2.78 0.014 4.33–6.49 2.64–3.54
Rousalka 1.40 0.0 1.09–2.07 0.31–0.62
Hamburgski Misket 1.39 0.0 3.26–3.26 0.72–0.72
Aligote 0.5 0.0 0.12–0.55 0.0

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